Netgear XCM8806 Chassis User Manual - Page 645
Multiple Routes, Static routes
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NETGEAR 8800 User Manual ospfv3-inter | ospfv3-intra | static | isis | isis-level-1| isis-level-1-external | isis-level-2| isis-level-2-external] enable ospfv3 {domain } export [direct | ripng | static | isis | isis-level-1 | isis-level-1-external | isis-level-2 | isis-level-2-external] [cost type [ase-type-1 | ase-type-2] | ] or disable ospfv3 {domain } export [direct | ripng | static | isis | isis-level-1 | isis-level-1-external | isis-level-2 | isis-level-2-external] The default setting is disabled. Static routes are never aged out of the routing table. A static route's nexthop (gateway) must be associated with a valid IP subnet. An IP subnet is associated with a single VLAN by its IP address and subnet mask. If the VLAN is subsequently deleted, the static route entries using that subnet must be deleted manually. The IPv6 routes can be viewed using the following command: show iproute ipv6 {priority | vlan | tunnel | | summary {multicast | unicast}} {vr }} To view the IPv6 routes based on the type of the route, use the command: show iproute ipv6 origin [direct | static | blackhole | ripng | ospfv3 | ospfv3-intra | ospv3-inter | ospfv3-extern1 | ospfv3-extern2 | isis | isis-leve1-1 | isis-level-2 | isis-level-1-external | isis-level-2-external] {vr } Multiple Routes When there are multiple, conflicting choices of a route to a particular destination, the router picks the route with the longest matching network mask. If these are still equal, the router picks the route using the following default criteria (in the order specified): • Directly attached network interfaces • Static routes • ICMP redirects • Dynamic routes • Directly attached network interfaces that are not active. Note: If you define multiple default routes, the route that has the lowest metric is used. If multiple default routes have the same lowest metric, the system picks one of the routes. You can also configure blackhole routes-traffic to these destinations is silently dropped. The criteria for choosing from multiple routes with the longest matching network mask is set by choosing the relative route priorities. Chapter 21. IPv6 Unicast Routing | 645
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